We integrate broker and exchange APIs — Zerodha, Angel One, Upstox, Dhan, Binance and more — for live data, order execution and account sync.
We integrate broker and exchange APIs — Zerodha, Angel One, Upstox, Dhan, Binance and more — for live data, order execution and account sync.
Zerodha, Angel, Upstox, Dhan, Fyers, Binance and more.
Real-time quotes and full order execution.
OAuth, token refresh and secure credential handling.
Positions, funds and trade-book reconciliation.
Everything you need to build, automate and scale your trading technology.
REST API development services — secure, versioned, well-documented REST APIs with authentication, rate-limiting and scalability for fintech and trading apps.
WebSocket integration & real-time streaming development — live price ticks, order updates and notifications with auto-reconnect, scaling and reliability.
Custom API development & integration services — payments, KYC, SMS/WhatsApp, data providers and internal systems integrated into a secure, unified API layer.
Every Indian broker exposes a different contract. Zerodha's Kite gives you a binary WebSocket with five-level depth and a daily token that dies at 07:30; Angel One's SmartAPI needs a TOTP login and returns SnapQuote depth on a separate socket; Upstox splits full-mode and LTP-mode subscriptions with a hard cap on how many instruments you can hold in full mode. An integration that treats them as interchangeable breaks the first time one of them changes a packet size.
We build a normalisation layer: one internal tick format, one order model, and per-broker adapters underneath. Quotes arrive on a priority ladder so a broker with real order-book depth always wins over one sending only last-traded price, and a stale-quote gate refuses to fill an order against a price that has stopped updating. Token refresh runs on a schedule with its own alerting, because a silent 03:00 token expiry is the single most common cause of a dead feed at 09:15.
On the order side we handle idempotency (a double-tapped button must not become two positions), partial fills, rejection mapping into readable messages, and end-of-day reconciliation of positions, funds and the trade book against the broker's own statement. Instrument masters are re-downloaded daily and expired contracts are dropped before the market opens, so a token that changed meaning overnight cannot point at the wrong strike.
Zerodha (Kite Connect), Angel One (SmartAPI), Upstox, Dhan, Fyers, Alice Blue, IIFL and 5paisa on the Indian side, plus Binance and other crypto venues. If a broker publishes a REST or WebSocket API we can integrate it; where no API exists we discuss the alternatives honestly rather than promising a workaround.
Yes. API access and any historical-data add-on are billed by the broker to you directly, and the credentials stay yours. We build against your keys and never hold funds or place trades on your behalf.
With a scheduled auto-login that refreshes the access token before market open, stores it outside the web root, and raises an alert if the refresh fails. Feeds also fall back to a secondary source so a token problem degrades the data instead of stopping it.
A single broker with live quotes and order placement is typically 1-2 weeks. Multi-broker with normalisation, reconciliation and failover runs 3-6 weeks depending on how many venues and instrument segments are involved.
Get a free consultation and technical proposal within 24 hours. Technology provider only — we build software, not brokerage or financial services.